--- /dev/null
+/*
+ * Animated GIF encoder
+ * Copyright (c) 2000 Gerard Lantau.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * First version by Francois Revol revol@free.fr
+ *
+ * Features and limitations:
+ * - currently no compression is performed,
+ * in fact the size of the data is 9/8 the size of the image in 8bpp
+ * - uses only a global standard palette
+ * - tested with IE 5.0, Opera for BeOS, NetPositive (BeOS), and Mozilla (BeOS).
+ *
+ * Reference documents:
+ * http://www.goice.co.jp/member/mo/formats/gif.html
+ * http://astronomy.swin.edu.au/pbourke/dataformats/gif/
+ * http://www.dcs.ed.ac.uk/home/mxr/gfx/2d/GIF89a.txt
+ *
+ * this url claims to have an LZW algorithm not covered by Unisys patent:
+ * http://www.msg.net/utility/whirlgif/gifencod.html
+ * could help reduce the size of the files _a lot_...
+ * some sites mentions an RLE type compression also.
+ */
+
+#include "avformat.h"
+
+/* bitstream minipacket size */
+#define GIF_CHUNKS 100
+
+/* slows down the decoding (and some browsers doesn't like it) */
+/* #define GIF_ADD_APP_HEADER */
+
+typedef struct {
+ unsigned char r;
+ unsigned char g;
+ unsigned char b;
+} rgb_triplet;
+
+/* we use the standard 216 color palette */
+
+/* this script was used to create the palette:
+ * for r in 00 33 66 99 cc ff; do for g in 00 33 66 99 cc ff; do echo -n " "; for b in 00 33 66 99 cc ff; do
+ * echo -n "{ 0x$r, 0x$g, 0x$b }, "; done; echo ""; done; done
+ */
+
+const rgb_triplet gif_clut[216] = {
+ { 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x33 }, { 0x00, 0x00, 0x66 }, { 0x00, 0x00, 0x99 }, { 0x00, 0x00, 0xcc }, { 0x00, 0x00, 0xff },
+ { 0x00, 0x33, 0x00 }, { 0x00, 0x33, 0x33 }, { 0x00, 0x33, 0x66 }, { 0x00, 0x33, 0x99 }, { 0x00, 0x33, 0xcc }, { 0x00, 0x33, 0xff },
+ { 0x00, 0x66, 0x00 }, { 0x00, 0x66, 0x33 }, { 0x00, 0x66, 0x66 }, { 0x00, 0x66, 0x99 }, { 0x00, 0x66, 0xcc }, { 0x00, 0x66, 0xff },
+ { 0x00, 0x99, 0x00 }, { 0x00, 0x99, 0x33 }, { 0x00, 0x99, 0x66 }, { 0x00, 0x99, 0x99 }, { 0x00, 0x99, 0xcc }, { 0x00, 0x99, 0xff },
+ { 0x00, 0xcc, 0x00 }, { 0x00, 0xcc, 0x33 }, { 0x00, 0xcc, 0x66 }, { 0x00, 0xcc, 0x99 }, { 0x00, 0xcc, 0xcc }, { 0x00, 0xcc, 0xff },
+ { 0x00, 0xff, 0x00 }, { 0x00, 0xff, 0x33 }, { 0x00, 0xff, 0x66 }, { 0x00, 0xff, 0x99 }, { 0x00, 0xff, 0xcc }, { 0x00, 0xff, 0xff },
+ { 0x33, 0x00, 0x00 }, { 0x33, 0x00, 0x33 }, { 0x33, 0x00, 0x66 }, { 0x33, 0x00, 0x99 }, { 0x33, 0x00, 0xcc }, { 0x33, 0x00, 0xff },
+ { 0x33, 0x33, 0x00 }, { 0x33, 0x33, 0x33 }, { 0x33, 0x33, 0x66 }, { 0x33, 0x33, 0x99 }, { 0x33, 0x33, 0xcc }, { 0x33, 0x33, 0xff },
+ { 0x33, 0x66, 0x00 }, { 0x33, 0x66, 0x33 }, { 0x33, 0x66, 0x66 }, { 0x33, 0x66, 0x99 }, { 0x33, 0x66, 0xcc }, { 0x33, 0x66, 0xff },
+ { 0x33, 0x99, 0x00 }, { 0x33, 0x99, 0x33 }, { 0x33, 0x99, 0x66 }, { 0x33, 0x99, 0x99 }, { 0x33, 0x99, 0xcc }, { 0x33, 0x99, 0xff },
+ { 0x33, 0xcc, 0x00 }, { 0x33, 0xcc, 0x33 }, { 0x33, 0xcc, 0x66 }, { 0x33, 0xcc, 0x99 }, { 0x33, 0xcc, 0xcc }, { 0x33, 0xcc, 0xff },
+ { 0x33, 0xff, 0x00 }, { 0x33, 0xff, 0x33 }, { 0x33, 0xff, 0x66 }, { 0x33, 0xff, 0x99 }, { 0x33, 0xff, 0xcc }, { 0x33, 0xff, 0xff },
+ { 0x66, 0x00, 0x00 }, { 0x66, 0x00, 0x33 }, { 0x66, 0x00, 0x66 }, { 0x66, 0x00, 0x99 }, { 0x66, 0x00, 0xcc }, { 0x66, 0x00, 0xff },
+ { 0x66, 0x33, 0x00 }, { 0x66, 0x33, 0x33 }, { 0x66, 0x33, 0x66 }, { 0x66, 0x33, 0x99 }, { 0x66, 0x33, 0xcc }, { 0x66, 0x33, 0xff },
+ { 0x66, 0x66, 0x00 }, { 0x66, 0x66, 0x33 }, { 0x66, 0x66, 0x66 }, { 0x66, 0x66, 0x99 }, { 0x66, 0x66, 0xcc }, { 0x66, 0x66, 0xff },
+ { 0x66, 0x99, 0x00 }, { 0x66, 0x99, 0x33 }, { 0x66, 0x99, 0x66 }, { 0x66, 0x99, 0x99 }, { 0x66, 0x99, 0xcc }, { 0x66, 0x99, 0xff },
+ { 0x66, 0xcc, 0x00 }, { 0x66, 0xcc, 0x33 }, { 0x66, 0xcc, 0x66 }, { 0x66, 0xcc, 0x99 }, { 0x66, 0xcc, 0xcc }, { 0x66, 0xcc, 0xff },
+ { 0x66, 0xff, 0x00 }, { 0x66, 0xff, 0x33 }, { 0x66, 0xff, 0x66 }, { 0x66, 0xff, 0x99 }, { 0x66, 0xff, 0xcc }, { 0x66, 0xff, 0xff },
+ { 0x99, 0x00, 0x00 }, { 0x99, 0x00, 0x33 }, { 0x99, 0x00, 0x66 }, { 0x99, 0x00, 0x99 }, { 0x99, 0x00, 0xcc }, { 0x99, 0x00, 0xff },
+ { 0x99, 0x33, 0x00 }, { 0x99, 0x33, 0x33 }, { 0x99, 0x33, 0x66 }, { 0x99, 0x33, 0x99 }, { 0x99, 0x33, 0xcc }, { 0x99, 0x33, 0xff },
+ { 0x99, 0x66, 0x00 }, { 0x99, 0x66, 0x33 }, { 0x99, 0x66, 0x66 }, { 0x99, 0x66, 0x99 }, { 0x99, 0x66, 0xcc }, { 0x99, 0x66, 0xff },
+ { 0x99, 0x99, 0x00 }, { 0x99, 0x99, 0x33 }, { 0x99, 0x99, 0x66 }, { 0x99, 0x99, 0x99 }, { 0x99, 0x99, 0xcc }, { 0x99, 0x99, 0xff },
+ { 0x99, 0xcc, 0x00 }, { 0x99, 0xcc, 0x33 }, { 0x99, 0xcc, 0x66 }, { 0x99, 0xcc, 0x99 }, { 0x99, 0xcc, 0xcc }, { 0x99, 0xcc, 0xff },
+ { 0x99, 0xff, 0x00 }, { 0x99, 0xff, 0x33 }, { 0x99, 0xff, 0x66 }, { 0x99, 0xff, 0x99 }, { 0x99, 0xff, 0xcc }, { 0x99, 0xff, 0xff },
+ { 0xcc, 0x00, 0x00 }, { 0xcc, 0x00, 0x33 }, { 0xcc, 0x00, 0x66 }, { 0xcc, 0x00, 0x99 }, { 0xcc, 0x00, 0xcc }, { 0xcc, 0x00, 0xff },
+ { 0xcc, 0x33, 0x00 }, { 0xcc, 0x33, 0x33 }, { 0xcc, 0x33, 0x66 }, { 0xcc, 0x33, 0x99 }, { 0xcc, 0x33, 0xcc }, { 0xcc, 0x33, 0xff },
+ { 0xcc, 0x66, 0x00 }, { 0xcc, 0x66, 0x33 }, { 0xcc, 0x66, 0x66 }, { 0xcc, 0x66, 0x99 }, { 0xcc, 0x66, 0xcc }, { 0xcc, 0x66, 0xff },
+ { 0xcc, 0x99, 0x00 }, { 0xcc, 0x99, 0x33 }, { 0xcc, 0x99, 0x66 }, { 0xcc, 0x99, 0x99 }, { 0xcc, 0x99, 0xcc }, { 0xcc, 0x99, 0xff },
+ { 0xcc, 0xcc, 0x00 }, { 0xcc, 0xcc, 0x33 }, { 0xcc, 0xcc, 0x66 }, { 0xcc, 0xcc, 0x99 }, { 0xcc, 0xcc, 0xcc }, { 0xcc, 0xcc, 0xff },
+ { 0xcc, 0xff, 0x00 }, { 0xcc, 0xff, 0x33 }, { 0xcc, 0xff, 0x66 }, { 0xcc, 0xff, 0x99 }, { 0xcc, 0xff, 0xcc }, { 0xcc, 0xff, 0xff },
+ { 0xff, 0x00, 0x00 }, { 0xff, 0x00, 0x33 }, { 0xff, 0x00, 0x66 }, { 0xff, 0x00, 0x99 }, { 0xff, 0x00, 0xcc }, { 0xff, 0x00, 0xff },
+ { 0xff, 0x33, 0x00 }, { 0xff, 0x33, 0x33 }, { 0xff, 0x33, 0x66 }, { 0xff, 0x33, 0x99 }, { 0xff, 0x33, 0xcc }, { 0xff, 0x33, 0xff },
+ { 0xff, 0x66, 0x00 }, { 0xff, 0x66, 0x33 }, { 0xff, 0x66, 0x66 }, { 0xff, 0x66, 0x99 }, { 0xff, 0x66, 0xcc }, { 0xff, 0x66, 0xff },
+ { 0xff, 0x99, 0x00 }, { 0xff, 0x99, 0x33 }, { 0xff, 0x99, 0x66 }, { 0xff, 0x99, 0x99 }, { 0xff, 0x99, 0xcc }, { 0xff, 0x99, 0xff },
+ { 0xff, 0xcc, 0x00 }, { 0xff, 0xcc, 0x33 }, { 0xff, 0xcc, 0x66 }, { 0xff, 0xcc, 0x99 }, { 0xff, 0xcc, 0xcc }, { 0xff, 0xcc, 0xff },
+ { 0xff, 0xff, 0x00 }, { 0xff, 0xff, 0x33 }, { 0xff, 0xff, 0x66 }, { 0xff, 0xff, 0x99 }, { 0xff, 0xff, 0xcc }, { 0xff, 0xff, 0xff },
+};
+
+/* The GIF format uses reversed order for bitstreams... */
+/* at least they don't use PDP_ENDIAN :) */
+/* so we 'extend' PutBitContext. hmmm, OOP :) */
+/* seems this thing changed slightly since I wrote it... */
+
+#ifdef ALT_BITSTREAM_WRITER
+# error no ALT_BITSTREAM_WRITER support for now
+#endif
+
+void init_put_bits_rev(PutBitContext *s,
+ UINT8 *buffer, int buffer_size,
+ void *opaque,
+ void (*write_data)(void *, UINT8 *, int))
+{
+ init_put_bits(s, buffer, buffer_size, opaque, write_data);
+}
+
+void put_bits_rev(PutBitContext *s, int n, unsigned int value)
+{
+ unsigned int bit_buf;
+ int bit_cnt;
+
+#ifdef STATS
+ st_out_bit_counts[st_current_index] += n;
+#endif
+ // printf("put_bits=%d %x\n", n, value);
+ assert(n == 32 || value < (1U << n));
+
+ bit_buf = s->bit_buf;
+ bit_cnt = 32 - s->bit_left; /* XXX:lazyness... was = s->bit_cnt; */
+
+ // printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);
+ /* XXX: optimize */
+ if (n < (32-bit_cnt)) {
+ bit_buf |= value << (bit_cnt);
+ bit_cnt+=n;
+ } else {
+ bit_buf |= value << (bit_cnt);
+
+ *s->buf_ptr = bit_buf & 0xff;
+ s->buf_ptr[1] = (bit_buf >> 8) & 0xff;
+ s->buf_ptr[2] = (bit_buf >> 16) & 0xff;
+ s->buf_ptr[3] = (bit_buf >> 24) & 0xff;
+
+ //printf("bitbuf = %08x\n", bit_buf);
+ s->buf_ptr+=4;
+ if (s->buf_ptr >= s->buf_end)
+ puts("bit buffer overflow !!"); // should never happen ! who got rid of the callback ???
+// flush_buffer_rev(s);
+ bit_cnt=bit_cnt + n - 32;
+ if (bit_cnt == 0) {
+ bit_buf = 0;
+ } else {
+ bit_buf = value >> (n - bit_cnt);
+ }
+ }
+
+ s->bit_buf = bit_buf;
+ s->bit_left = 32 - bit_cnt;
+}
+
+/* return the number of bits output */
+INT64 get_bit_count_rev(PutBitContext *s)
+{
+ return get_bit_count(s);
+}
+
+void align_put_bits_rev(PutBitContext *s)
+{
+ align_put_bits(s);
+}
+
+/* pad the end of the output stream with zeros */
+void flush_put_bits_rev(PutBitContext *s)
+{
+ while (s->bit_left < 32) {
+ /* XXX: should test end of buffer */
+ *s->buf_ptr++=s->bit_buf & 0xff;
+ s->bit_buf>>=8;
+ s->bit_left+=8;
+ }
+// flush_buffer_rev(s);
+ s->bit_left=32;
+ s->bit_buf=0;
+}
+
+/* !RevPutBitContext */
+
+typedef struct {
+ UINT8 buffer[100]; /* data chunks */
+ INT64 time, file_time;
+} GIFContext;
+
+static int gif_write_header(AVFormatContext *s)
+{
+ GIFContext *gif;
+ ByteIOContext *pb = &s->pb;
+ AVCodecContext *enc, *video_enc;
+ int i, width, height, rate;
+
+/* XXX: do we reject audio streams or just ignore them ?
+ if(s->nb_streams > 1)
+ return -1;
+*/
+
+ gif = malloc(sizeof(GIFContext));
+ if (!gif)
+ return -1;
+ s->priv_data = gif;
+
+ gif->time = 0;
+ gif->file_time = 0;
+
+ video_enc = NULL;
+ for(i=0;i<s->nb_streams;i++) {
+ enc = &s->streams[i]->codec;
+ if (enc->codec_type != CODEC_TYPE_AUDIO)
+ video_enc = enc;
+ }
+
+ if (!video_enc) {
+ free(gif);
+ return -1;
+ } else {
+ width = video_enc->width;
+ height = video_enc->height;
+ rate = video_enc->frame_rate;
+ }
+
+ /* XXX: is it allowed ? seems to work so far... */
+ video_enc->pix_fmt = PIX_FMT_RGB24;
+
+ /* GIF header */
+
+ put_tag(pb, "GIF");
+ put_tag(pb, "89a");
+ put_le16(pb, width);
+ put_le16(pb, height);
+
+ put_byte(pb, 0xf7); /* flags: global clut, 256 entries */
+ put_byte(pb, 0x1f); /* background color index */
+ put_byte(pb, 0); /* aspect ratio */
+
+ /* the global palette */
+
+ put_buffer(pb, (unsigned char *)gif_clut, 216*3);
+ for(i=0;i<((256-216)*3);i++)
+ put_byte(pb, 0);
+
+ /* application extension header */
+ /* XXX: not really sure what to put in here... */
+#ifdef GIF_ADD_APP_HEADER
+ put_byte(pb, 0x21);
+ put_byte(pb, 0xff);
+ put_byte(pb, 0x0b);
+ put_tag(pb, "NETSCAPE2.0");
+ put_byte(pb, 0x03);
+ put_byte(pb, 0x01);
+ put_byte(pb, 0x00);
+ put_byte(pb, 0x00);
+#endif
+
+ put_flush_packet(&s->pb);
+ return 0;
+}
+
+/* this is maybe slow, but allows for extensions */
+static inline unsigned char gif_clut_index(rgb_triplet *clut, UINT8 r, UINT8 g, UINT8 b)
+{
+ return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
+}
+
+/* chunk writer callback */
+/* !!! XXX:deprecated
+static void gif_put_chunk(void *pbctx, UINT8 *buffer, int count)
+{
+ ByteIOContext *pb = (ByteIOContext *)pbctx;
+ put_byte(pb, (UINT8)count);
+ put_buffer(pb, buffer, count);
+}
+*/
+
+static int gif_write_video(AVFormatContext *s,
+ AVCodecContext *enc, UINT8 *buf, int size)
+{
+ ByteIOContext *pb = &s->pb;
+ GIFContext *gif = s->priv_data;
+ int i, left, jiffies;
+ INT64 delay;
+ PutBitContext p;
+ UINT8 buffer[200]; /* 100 * 9 / 8 = 113 */
+
+
+ /* graphic control extension block */
+ put_byte(pb, 0x21);
+ put_byte(pb, 0xf9);
+ put_byte(pb, 0x04); /* block size */
+ put_byte(pb, 0x04); /* flags */
+
+ /* 1 jiffy is 1/70 s */
+ /* the delay_time field indicates the number of jiffies - 1 */
+ delay = gif->file_time - gif->time;
+
+ /* XXX: should use delay, in order to be more accurate */
+ /* instead of using the same rounded value each time */
+ /* XXX: don't even remember if I really use it for now */
+ jiffies = (70*FRAME_RATE_BASE/enc->frame_rate) - 1;
+
+ put_le16(pb, jiffies);
+
+ put_byte(pb, 0x1f); /* transparent color index */
+ put_byte(pb, 0x00);
+
+ /* image block */
+
+ put_byte(pb, 0x2c);
+ put_le16(pb, 0);
+ put_le16(pb, 0);
+ put_le16(pb, enc->width);
+ put_le16(pb, enc->height);
+ put_byte(pb, 0x00); /* flags */
+ /* no local clut */
+
+ put_byte(pb, 0x08);
+
+ left=size/3;
+
+ /* XXX:deprecated */
+ /*init_put_bits_rev(&p, buffer, sizeof(buf), (void *)pb, gif_put_chunk); *//* mmm found a but in my code: s/sizeof(buf)/150/ */
+
+ init_put_bits_rev(&p, buffer, 130, NULL, NULL);
+
+/*
+ * the thing here is the bitstream is written as little packets, with a size byte before
+ * but it's still the same bitstream between packets (no flush !)
+ */
+
+ while(left>0) {
+
+ put_bits_rev(&p, 9, 0x0100); /* clear code */
+
+ for(i=0;i<GIF_CHUNKS;i++) {
+ put_bits_rev(&p, 9, gif_clut_index(NULL, *buf, buf[1], buf[2]));
+ buf+=3;
+ }
+
+ if(left<=GIF_CHUNKS) {
+ put_bits_rev(&p, 9, 0x101); /* end of stream */
+ flush_put_bits_rev(&p);
+ }
+ if(pbBufPtr(&p) - p.buf > 0) {
+ put_byte(pb, pbBufPtr(&p) - p.buf); /* byte count of the packet */
+ put_buffer(pb, p.buf, pbBufPtr(&p) - p.buf); /* the actual buffer */
+ p.data_out_size += pbBufPtr(&p) - p.buf;
+ p.buf_ptr = p.buf; /* dequeue the bytes off the bitstream */
+ }
+ if(left<=GIF_CHUNKS) {
+ put_byte(pb, 0x00); /* end of image block */
+ }
+
+ left-=GIF_CHUNKS;
+ }
+
+ put_flush_packet(&s->pb);
+ return 0;
+}
+
+static int gif_write_packet(AVFormatContext *s, int stream_index,
+ UINT8 *buf, int size)
+{
+ AVCodecContext *codec = &s->streams[stream_index]->codec;
+ if (codec->codec_type == CODEC_TYPE_AUDIO)
+ return 0; /* just ignore audio */
+ else
+ return gif_write_video(s, codec, buf, size);
+}
+
+static int gif_write_trailer(AVFormatContext *s)
+{
+ GIFContext *gif = s->priv_data;
+ ByteIOContext *pb = &s->pb;
+
+ put_byte(pb, 0x3b);
+ put_flush_packet(&s->pb);
+
+ free(gif);
+ return 0;
+}
+
+AVFormat gif_format = {
+ "gif",
+ "GIF Animation",
+ "image/gif",
+ "gif",
+ CODEC_ID_NONE,
+ CODEC_ID_RAWVIDEO,
+ gif_write_header,
+ gif_write_packet,
+ gif_write_trailer,
+
+ NULL, /* read_header */
+ NULL, /* read_packet */
+ NULL, /* read_close */
+};
+
--- /dev/null
+/*
+ * MOV decoder.
+ * Copyright (c) 2001 Gerard Lantau.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "avformat.h"
+#include "avi.h"
+
+/*
+ * First version by Francois Revol revol@free.fr
+ *
+ * Features and limitations:
+ * - reads most of the QT files I have (at least the structure),
+ * the exceptions are .mov with zlib compressed headers ('cmov' section). It shouldn't be hard to implement.
+ * - ffmpeg has nearly none of the usual QuickTime codecs,
+ * although I succesfully dumped raw and mp3 audio tracks off .mov files.
+ * Sample QuickTime files with mp3 audio can be found at: http://www.3ivx.com/showcase.html
+ * - .mp4 parsing is still hazardous, although the format really is QuickTime with some minor changes
+ * (to make .mov parser crash maybe ?), despite what they say in the MPEG FAQ at
+ * http://mpeg.telecomitalialab.com/faq.htm
+ * - the code is quite ugly... maybe I won't do it recursive next time :-)
+ *
+ * Funny I didn't know about http://sourceforge.net/projects/qt-ffmpeg/
+ * when coding this :) (it's a writer anyway)
+ *
+ * Reference documents:
+ * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
+ * Apple:
+ * http://developer.apple.com/techpubs/quicktime/qtdevdocs/QTFF/qtff.html
+ * http://developer.apple.com/techpubs/quicktime/qtdevdocs/PDF/QTFileFormat.pdf
+ * QuickTime is a trademark of Apple (AFAIK :))
+ */
+
+#define DEBUG
+
+#ifdef DEBUG
+/*
+ * XXX: static sux, even more in a multithreaded environment...
+ * Avoid them. This is here just to help debugging.
+ */
+static int debug_indent = 0;
+void print_atom(const char *str, UINT32 type, UINT64 offset, UINT64 size)
+{
+ unsigned int tag, i;
+ tag = (unsigned int) type;
+ i=debug_indent;
+ if(tag == 0) tag = MKTAG('N', 'U', 'L', 'L');
+ while(i--)
+ printf("|");
+ printf("parse:");
+ printf(" %s: tag=%c%c%c%c offset=%d size=0x%x\n",
+ str, tag & 0xff,
+ (tag >> 8) & 0xff,
+ (tag >> 16) & 0xff,
+ (tag >> 24) & 0xff,
+ (unsigned int)offset,
+ (unsigned int)size);
+}
+#endif
+
+/* some streams in QT (and in MP4 mostly) aren't either video nor audio */
+/* so we first list them as this, then clean up the list of streams we give back, */
+/* getting rid of these */
+#define CODEC_TYPE_MOV_OTHER 2
+
+CodecTag mov_video_tags[] = {
+/* { CODEC_ID_, MKTAG('c', 'v', 'i', 'd') }, *//* Cinepak */
+/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG */
+ { CODEC_ID_H263, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
+ { CODEC_ID_H263, MKTAG('Y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
+/* Graphics */
+/* Animation */
+/* Apple video */
+/* Kodak Photo CD */
+/* { CODEC_ID_JPEG, MKTAG('j', 'p', 'e', 'g') }, *//* JPEG ? */
+ { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
+ { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format A) */
+ { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
+/* { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, *//* embedded gif files as frames (usually one "click to play movie" frame) */
+/* Sorenson video */
+ { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, /* OpenDiVX *//* yeah ! */
+ { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
+/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
+ { 0, 0 },
+};
+
+CodecTag mov_audio_tags[] = {
+/* { CODEC_ID_PCM_S16BE, MKTAG('N', 'O', 'N', 'E') }, *//* uncompressed */
+ { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
+ { CODEC_ID_PCM_S8, MKTAG('t', 'w', 'o', 's') }, /* 8 bits */
+ { CODEC_ID_PCM_U8, 0x20776172 }, /* 8 bits unsigned */
+ { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */
+ { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */
+ { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */
+/* { CODEC_ID_, MKTAG('i', 'm', 'a', '4') }, *//* IMA-4 */
+
+ { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
+ { CODEC_ID_MP2, 0x6D730055 }, /* MPEG layer 3 */
+ { CODEC_ID_MP2, 0x5500736D }, /* MPEG layer 3 *//* XXX: check endianness */
+/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
+/* MP4 tags */
+/* { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, *//* MPEG 4 AAC or audio ? */
+ /* The standard for mpeg4 audio is still not normalised AFAIK anyway */
+ { 0, 0 },
+};
+
+/* the QuickTime file format is quite convoluted...
+ * it has lots of index tables, each indexing something in another one...
+ * Here we just use what is needed to read the chunks
+ */
+
+typedef struct MOV_sample_to_chunk_tbl {
+ long first;
+ long count;
+ long id;
+} MOV_sample_to_chunk_tbl;
+
+typedef struct MOVStreamContext {
+ int ffindex; /* the ffmpeg stream id */
+ int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
+ long next_chunk;
+ long chunk_count;
+ INT64 *chunk_offsets;
+ long sample_to_chunk_sz;
+ MOV_sample_to_chunk_tbl *sample_to_chunk;
+ long sample_size;
+ long sample_count;
+ long *sample_sizes;
+} MOVStreamContext;
+
+typedef struct MOVContext {
+ int mp4; /* set to 1 as soon as we are sure that the file is an .mp4 file (even some header parsing depends on this) */
+ AVFormatContext *fc;
+ long time_scale;
+ int found_moov; /* when both 'moov' and 'mdat' sections has been found */
+ int found_mdat; /* we suppose we have enough data to read the file */
+ INT64 mdat_size;
+ INT64 mdat_offset;
+ int total_streams;
+ /* some streams listed here aren't presented to the ffmpeg API, since they aren't either video nor audio
+ * but we need the info to be able to skip data from those streams in the 'mdat' section
+ */
+ MOVStreamContext *streams[MAX_STREAMS];
+
+ INT64 next_chunk_offset;
+} MOVContext;
+
+
+struct MOVParseTableEntry;
+
+/* XXX: it's the first time I make a recursive parser I think... sorry if it's ugly :P */
+
+/* those functions parse an atom */
+/* return code:
+ 1: found what I wanted, exit
+ 0: continue to parse next atom
+ -1: error occured, exit
+ */
+typedef int (*mov_parse_function)(struct MOVParseTableEntry *parse_table,
+ ByteIOContext *pb,
+ UINT32 atom_type,
+ INT64 atom_offset, /* after the size and type field (and eventually the extended size) */
+ INT64 atom_size, /* total size (excluding the size and type fields) */
+ void *param);
+
+/* links atom IDs to parse functions */
+typedef struct MOVParseTableEntry {
+ UINT32 type;
+ mov_parse_function func;
+} MOVParseTableEntry;
+
+static int parse_leaf(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+#ifdef DEBUG
+ print_atom("leaf", atom_type, atom_offset, atom_size);
+#endif
+ if(atom_size>1)
+ url_fskip(pb, atom_size);
+/* url_seek(pb, atom_offset+atom_size, SEEK_SET); */
+ return 0;
+}
+
+
+static int parse_default(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ UINT32 type, foo=0;
+ UINT64 offset, size;
+ UINT64 total_size = 0;
+ int i;
+ int err = 0;
+ foo=0;
+#ifdef DEBUG
+ print_atom("default", atom_type, atom_offset, atom_size);
+ debug_indent++;
+#endif
+
+ offset = atom_offset;
+
+ if(atom_size < 0)
+ atom_size = 0x0FFFFFFFFFFFFFFF;
+ while((total_size < atom_size) && !url_feof(pb) && !err) {
+ size=atom_size;
+ type=0L;
+ if(atom_size >= 8) {
+ size = get_be32(pb);
+ type = get_le32(pb);
+ }
+ total_size += 8;
+ offset+=8;
+// printf("type: %08lx sz: %08lx", type, size);
+ if(size == 1) { /* 64 bit extended size */
+ size = get_be64(pb);
+ offset+=8;
+ total_size+=8;
+ size-=8;
+ }
+ if(size == 0)
+ size = atom_size - total_size;
+ size-=8;
+ for(i=0; parse_table[i].type != 0L && parse_table[i].type != type; i++);
+
+// printf(" i=%ld\n", i);
+ if(parse_table[i].type == NULL) { /* skip leaf atoms data */
+// url_seek(pb, atom_offset+atom_size, SEEK_SET);
+#ifdef DEBUG
+ print_atom("unknown", type, offset, size);
+#endif
+ url_fskip(pb, size);
+ } else
+ err = (parse_table[i].func)(parse_table, pb, type, offset, size, param);
+
+ offset+=size;
+ total_size+=size;
+ }
+
+#ifdef DEBUG
+ debug_indent--;
+#endif
+ return err;
+}
+
+static int parse_mvhd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+#ifdef DEBUG
+ print_atom("mvhd", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ get_be32(pb); /* creation time */
+ get_be32(pb); /* modification time */
+ c->time_scale = get_be32(pb); /* time scale */
+ get_be32(pb); /* duration */
+ get_be32(pb); /* preferred scale */
+
+ get_be16(pb); /* preferred volume */
+
+ url_fskip(pb, 10); /* reserved */
+
+ url_fskip(pb, 36); /* display matrix */
+
+ get_be32(pb); /* preview time */
+ get_be32(pb); /* preview duration */
+ get_be32(pb); /* poster time */
+ get_be32(pb); /* selection time */
+ get_be32(pb); /* selection duration */
+ get_be32(pb); /* current time */
+ get_be32(pb); /* next track ID */
+
+ return 0;
+}
+
+/* this atom should contain all header atoms */
+static int parse_moov(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ int err;
+ MOVContext *c;
+#ifdef DEBUG
+ print_atom("moov", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+
+ err = parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
+ /* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
+ /* so we don't parse the whole file if over a network */
+ c->found_moov=1;
+ if(c->found_mdat)
+ return 1; /* found both, just go */
+ return 0; /* now go for mdat */
+}
+
+/* this atom contains actual media data */
+static int parse_mdat(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ int err;
+ MOVContext *c;
+#ifdef DEBUG
+ print_atom("mdat", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+
+ if(atom_size == 0) /* wrong one (MP4) */
+ return 0;
+ c->found_mdat=1;
+ c->mdat_offset = atom_offset;
+ c->mdat_size = atom_size;
+ if(c->found_moov)
+ return 1; /* found both, just go */
+ url_fskip(pb, atom_size);
+ return 0; /* now go for moov */
+}
+
+static int parse_trak(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ AVStream *st;
+ MOVStreamContext *sc;
+#ifdef DEBUG
+ print_atom("trak", atom_type, atom_offset, atom_size);
+#endif
+
+ c = (MOVContext *)param;
+ st = malloc(sizeof(AVStream));
+ if (!st) return -2;
+ memset(st, 0, sizeof(AVStream));
+ c->fc->streams[c->fc->nb_streams] = st;
+ sc = malloc(sizeof(MOVStreamContext));
+ st->priv_data = sc;
+ st->codec.codec_type = CODEC_TYPE_MOV_OTHER;
+ c->streams[c->fc->nb_streams++] = sc;
+ return parse_default(parse_table, pb, atom_type, atom_offset, atom_size, param);
+}
+
+static int parse_tkhd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ AVStream *st;
+#ifdef DEBUG
+ print_atom("tkhd", atom_type, atom_offset, atom_size);
+#endif
+
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+
+ get_byte(pb); /* version */
+
+ get_byte(pb); get_byte(pb);
+ get_byte(pb); /* flags */
+ /*
+ MOV_TRACK_ENABLED 0x0001
+ MOV_TRACK_IN_MOVIE 0x0002
+ MOV_TRACK_IN_PREVIEW 0x0004
+ MOV_TRACK_IN_POSTER 0x0008
+ */
+
+ get_be32(pb); /* creation time */
+ get_be32(pb); /* modification time */
+ st->id = (int)get_be32(pb); /* track id (NOT 0 !)*/
+ get_be32(pb); /* reserved */
+ get_be32(pb); /* duration */
+ get_be32(pb); /* reserved */
+ get_be32(pb); /* reserved */
+
+ get_be16(pb); /* layer */
+ get_be16(pb); /* alternate group */
+ get_be16(pb); /* volume */
+ get_be16(pb); /* reserved */
+
+ url_fskip(pb, 36); /* display matrix */
+
+ /* those are fixed-point */
+ st->codec.width = get_be32(pb) >> 16; /* track width */
+ st->codec.height = get_be32(pb) >> 16; /* track height */
+
+ return 0;
+}
+
+static int parse_hdlr(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int len;
+ char *buf, ch;
+ UINT32 type;
+ AVStream *st;
+ UINT32 ctype;
+#ifdef DEBUG
+ print_atom("hdlr", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ /* component type */
+ ctype = get_le32(pb);
+ type = get_le32(pb); /* component subtype */
+
+#ifdef DEBUG
+ printf("ctype= %c%c%c%c (0x%08lx)\n", *((char *)&ctype), ((char *)&ctype)[1], ((char *)&ctype)[2], ((char *)&ctype)[3], ctype);
+ printf("stype= %c%c%c%c\n", *((char *)&type), ((char *)&type)[1], ((char *)&type)[2], ((char *)&type)[3]);
+#endif
+#ifdef DEBUG
+/* XXX: yeah this is ugly... */
+ if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
+ if(type == MKTAG('v', 'i', 'd', 'e'))
+ puts("hdlr: vide");
+ else if(type == MKTAG('s', 'o', 'u', 'n'))
+ puts("hdlr: soun");
+ } else if(ctype == 0) { /* MP4 */
+ if(type == MKTAG('v', 'i', 'd', 'e'))
+ puts("hdlr: vide");
+ else if(type == MKTAG('s', 'o', 'u', 'n'))
+ puts("hdlr: soun");
+ else if(type == MKTAG('o', 'd', 's', 'm'))
+ puts("hdlr: odsm");
+ else if(type == MKTAG('s', 'd', 's', 'm'))
+ puts("hdlr: sdsm");
+ } else puts("hdlr: meta");
+#endif
+
+ if(ctype == MKTAG('m', 'h', 'l', 'r')) { /* MOV */
+ if(type == MKTAG('v', 'i', 'd', 'e'))
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ else if(type == MKTAG('s', 'o', 'u', 'n'))
+ st->codec.codec_type = CODEC_TYPE_AUDIO;
+ } else if(ctype == 0) { /* MP4 */
+ if(type == MKTAG('v', 'i', 'd', 'e'))
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ else if(type == MKTAG('s', 'o', 'u', 'n'))
+ st->codec.codec_type = CODEC_TYPE_AUDIO;
+ }
+ get_be32(pb); /* component manufacture */
+ get_be32(pb); /* component flags */
+ get_be32(pb); /* component flags mask */
+
+ if(atom_size <= 24)
+ return 0; /* nothing left to read */
+ /* XXX: MP4 uses a C string, not a pascal one */
+ /* component name */
+ if(c->mp4) {
+#ifdef DEBUG
+ puts("MP4!!!");
+#endif
+ while(ch=get_byte(pb));
+ } else {
+ len = get_byte(pb);
+ if(len) {
+ buf = malloc(len+1);
+ get_buffer(pb, buf, len);
+ buf[len] = '\0';
+#ifdef DEBUG
+ puts(buf);
+#endif
+ free(buf);
+ }
+ }
+
+ return 0;
+}
+
+static int parse_stsd(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int entries, size, samp_sz, frames_per_sample;
+ char *buf;
+ UINT32 format;
+ AVStream *st;
+#ifdef DEBUG
+ print_atom("stsd", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+
+ entries = get_be32(pb);
+
+ while(entries--) {
+ size = get_be32(pb); /* size */
+ format = get_le32(pb); /* data format */
+
+ get_be32(pb); /* reserved */
+ get_be16(pb); /* reserved */
+ get_be16(pb); /* index */
+/* if(format == MKTAG('m', 'p', '4', 'v')) */
+/* st->codec.codec_type=CODEC_TYPE_VIDEO; *//* force things (XXX: was this for .mp4 ?) */
+ if(st->codec.codec_type==CODEC_TYPE_VIDEO) {
+ st->codec.codec_tag = format;
+ st->codec.codec_id = codec_get_id(mov_video_tags, format);
+ get_be16(pb); /* version */
+ get_be16(pb); /* revision level */
+ get_be32(pb); /* vendor */
+ get_be32(pb); /* temporal quality */
+ get_be32(pb); /* spacial quality */
+ st->codec.width = get_be16(pb); /* width */
+ st->codec.height = get_be16(pb); /* height */
+ get_be32(pb); /* horiz resolution */
+ get_be32(pb); /* vert resolution */
+ get_be32(pb); /* data size, always 0 */
+ frames_per_sample = get_be16(pb); /* frame per samples */
+#ifdef DEBUG
+ printf("frames/samples = %ld\n", frames_per_sample);
+#endif
+ url_fskip(pb, 32); /* codec name */
+
+ get_be16(pb); /* depth */
+ get_be16(pb); /* colortable id */
+ get_be16(pb); /* */
+ get_be16(pb); /* */
+
+ st->codec.sample_rate = 25 * FRAME_RATE_BASE;
+
+ if(size > 16)
+ url_fskip(pb, size-(16+24+18+32));
+ } else {
+ st->codec.codec_tag = format;
+
+ get_be16(pb); /* version */
+ get_be16(pb); /* revision level */
+ get_be32(pb); /* vendor */
+
+ st->codec.channels = get_be16(pb);/* channel count */
+ samp_sz = get_be16(pb); /* sample size */
+#ifdef DEBUG
+ if(samp_sz != 16)
+ puts("!!! stsd: audio sample size is not 16 bit !");
+#endif
+ st->codec.codec_id = codec_get_id(mov_audio_tags, format);
+ /* handle specific s8 codec */
+ if (st->codec.codec_id == CODEC_ID_PCM_S16BE && samp_sz == 8)
+ st->codec.codec_id = CODEC_ID_PCM_S8;
+
+ get_be16(pb); /* compression id = 0*/
+ get_be16(pb); /* packet size = 0 */
+
+ st->codec.sample_rate = ((get_be32(pb) >> 16));
+ st->codec.bit_rate = 0;
+
+ /* this is for .mp4 files */
+ if(format == MKTAG('m', 'p', '4', 'v')) { /* XXX */
+ st->codec.codec_type=CODEC_TYPE_VIDEO; /* force things */
+ st->codec.codec_id = CODEC_ID_MPEG4;
+ st->codec.frame_rate = 25;
+ st->codec.bit_rate = 100000;
+ }
+
+#if 0
+
+ get_be16(pb); get_be16(pb); /* */
+ get_be16(pb); /* */
+ get_be16(pb); /* */
+ get_be16(pb); /* */
+ get_be16(pb); /* */
+#endif
+ if(size > 16)
+ url_fskip(pb, size-(16+20));
+ }
+#ifdef DEBUG
+ printf("4CC= %c%c%c%c\n", *((char *)&format), ((char *)&format)[1], ((char *)&format)[2], ((char *)&format)[3]);
+#endif
+ }
+/*
+ if(len) {
+ buf = malloc(len+1);
+ get_buffer(pb, buf, len);
+ buf[len] = '\0';
+ puts(buf);
+ free(buf);
+ }
+*/
+ return 0;
+}
+
+static int parse_stco(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int entries, i;
+ AVStream *st;
+ MOVStreamContext *sc;
+#ifdef DEBUG
+ print_atom("stco", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+ sc = (MOVStreamContext *)st->priv_data;
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ entries = get_be32(pb);
+ sc->chunk_count = entries;
+ sc->chunk_offsets = malloc(entries * sizeof(INT64));
+ if(atom_type == MKTAG('s', 't', 'c', 'o')) {
+ for(i=0; i<entries; i++) {
+ sc->chunk_offsets[i] = get_be32(pb);
+ /*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/
+ }
+ } else if(atom_type == MKTAG('c', 'o', '6', '4')) {
+ for(i=0; i<entries; i++) {
+ sc->chunk_offsets[i] = get_be64(pb);
+ /*printf("chunk offset=%ld\n", sc->chunk_offsets[i]);*/
+ }
+ } else
+ return -1;
+ return 0;
+}
+
+static int parse_stsc(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int entries, i;
+ AVStream *st;
+ MOVStreamContext *sc;
+#ifdef DEBUG
+ print_atom("stsc", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+ sc = (MOVStreamContext *)st->priv_data;
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ entries = get_be32(pb);
+ sc->sample_to_chunk_sz = entries;
+ sc->sample_to_chunk = malloc(entries * sizeof(MOV_sample_to_chunk_tbl));
+ for(i=0; i<entries; i++) {
+ sc->sample_to_chunk[i].first = get_be32(pb);
+ sc->sample_to_chunk[i].count = get_be32(pb);
+ sc->sample_to_chunk[i].id = get_be32(pb);
+#ifdef DEBUG
+/* printf("sample_to_chunk first=%ld count=%ld, id=%ld\n", sc->sample_to_chunk[i].first, sc->sample_to_chunk[i].count, sc->sample_to_chunk[i].id); */
+#endif
+ }
+ return 0;
+}
+
+static int parse_stsz(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param)
+{
+ MOVContext *c;
+ int entries, i;
+ AVStream *st;
+ MOVStreamContext *sc;
+#ifdef DEBUG
+ print_atom("stsz", atom_type, atom_offset, atom_size);
+#endif
+ c = (MOVContext *)param;
+ st = c->fc->streams[c->fc->nb_streams-1];
+ sc = (MOVStreamContext *)st->priv_data;
+
+ get_byte(pb); /* version */
+ get_byte(pb); get_byte(pb); get_byte(pb); /* flags */
+
+ sc->sample_size = get_be32(pb);
+ entries = get_be32(pb);
+ sc->sample_count = entries;
+ printf("sample_size = %ld sample_count = %ld\n", sc->sample_size, sc->sample_count);
+ if(sc->sample_size)
+ return 0; /* there isn't any table following */
+ sc->sample_sizes = malloc(entries * sizeof(long));
+ for(i=0; i<entries; i++) {
+ sc->sample_sizes[i] = get_be32(pb);
+#ifdef DEBUG
+/* printf("sample_sizes[]=%ld\n", sc->sample_sizes[i]); */
+#endif
+ }
+ return 0;
+}
+
+static const MOVParseTableEntry mov_default_parse_table[] = {
+/* mp4 atoms */
+{ MKTAG( 'm', 'p', '4', 'a' ), parse_default },
+{ MKTAG( 'c', 'o', '6', '4' ), parse_stco },
+{ MKTAG( 's', 't', 'c', 'o' ), parse_stco },
+{ MKTAG( 'c', 'r', 'h', 'd' ), parse_default },
+{ MKTAG( 'c', 't', 't', 's' ), parse_leaf },
+{ MKTAG( 'c', 'p', 'r', 't' ), parse_default },
+{ MKTAG( 'u', 'r', 'l', ' ' ), parse_leaf },
+{ MKTAG( 'u', 'r', 'n', ' ' ), parse_leaf },
+{ MKTAG( 'd', 'i', 'n', 'f' ), parse_default },
+{ MKTAG( 'd', 'r', 'e', 'f' ), parse_leaf },
+{ MKTAG( 's', 't', 'd', 'p' ), parse_default },
+{ MKTAG( 'e', 's', 'd', 's' ), parse_default },
+{ MKTAG( 'e', 'd', 't', 's' ), parse_default },
+{ MKTAG( 'e', 'l', 's', 't' ), parse_leaf },
+{ MKTAG( 'u', 'u', 'i', 'd' ), parse_default },
+{ MKTAG( 'f', 'r', 'e', 'e' ), parse_leaf },
+{ MKTAG( 'h', 'd', 'l', 'r' ), parse_hdlr },
+{ MKTAG( 'h', 'm', 'h', 'd' ), parse_default },
+{ MKTAG( 'h', 'i', 'n', 't' ), parse_leaf },
+{ MKTAG( 'n', 'm', 'h', 'd' ), parse_leaf },
+{ MKTAG( 'm', 'p', '4', 's' ), parse_default },
+{ MKTAG( 'm', 'd', 'i', 'a' ), parse_default },
+{ MKTAG( 'm', 'd', 'a', 't' ), parse_mdat },
+{ MKTAG( 'm', 'd', 'h', 'd' ), parse_leaf },
+{ MKTAG( 'm', 'i', 'n', 'f' ), parse_default },
+{ MKTAG( 'm', 'o', 'o', 'v' ), parse_moov },
+{ MKTAG( 'm', 'v', 'h', 'd' ), parse_mvhd },
+{ MKTAG( 'i', 'o', 'd', 's' ), parse_leaf },
+{ MKTAG( 'o', 'd', 'h', 'd' ), parse_default },
+{ MKTAG( 'm', 'p', 'o', 'd' ), parse_leaf },
+{ MKTAG( 's', 't', 's', 'd' ), parse_stsd },
+{ MKTAG( 's', 't', 's', 'z' ), parse_stsz },
+{ MKTAG( 's', 't', 'b', 'l' ), parse_default },
+{ MKTAG( 's', 't', 's', 'c' ), parse_stsc },
+{ MKTAG( 's', 'd', 'h', 'd' ), parse_default },
+{ MKTAG( 's', 't', 's', 'h' ), parse_default },
+{ MKTAG( 's', 'k', 'i', 'p' ), parse_default },
+{ MKTAG( 's', 'm', 'h', 'd' ), parse_leaf },
+{ MKTAG( 'd', 'p', 'n', 'd' ), parse_leaf },
+{ MKTAG( 's', 't', 's', 's' ), parse_leaf },
+{ MKTAG( 's', 't', 't', 's' ), parse_leaf },
+{ MKTAG( 't', 'r', 'a', 'k' ), parse_trak },
+{ MKTAG( 't', 'k', 'h', 'd' ), parse_tkhd },
+{ MKTAG( 't', 'r', 'e', 'f' ), parse_default }, /* not really */
+{ MKTAG( 'u', 'd', 't', 'a' ), parse_leaf },
+{ MKTAG( 'v', 'm', 'h', 'd' ), parse_leaf },
+{ MKTAG( 'm', 'p', '4', 'v' ), parse_default },
+/* extra mp4 */
+{ MKTAG( 'M', 'D', 'E', 'S' ), parse_leaf },
+/* QT atoms */
+{ MKTAG( 'c', 'h', 'a', 'p' ), parse_leaf },
+{ MKTAG( 'c', 'l', 'i', 'p' ), parse_default },
+{ MKTAG( 'c', 'r', 'g', 'n' ), parse_leaf },
+{ MKTAG( 'k', 'm', 'a', 't' ), parse_leaf },
+{ MKTAG( 'm', 'a', 't', 't' ), parse_default },
+{ MKTAG( 'r', 'd', 'r', 'f' ), parse_leaf },
+{ MKTAG( 'r', 'm', 'd', 'a' ), parse_default },
+{ MKTAG( 'r', 'm', 'd', 'r' ), parse_leaf },
+//{ MKTAG( 'r', 'm', 'q', 'u' ), parse_leaf },
+{ MKTAG( 'r', 'm', 'r', 'a' ), parse_default },
+{ MKTAG( 's', 'c', 'p', 't' ), parse_leaf },
+{ MKTAG( 's', 'y', 'n', 'c' ), parse_leaf },
+{ MKTAG( 's', 's', 'r', 'c' ), parse_leaf },
+{ MKTAG( 't', 'c', 'm', 'd' ), parse_leaf },
+{ MKTAG( 'w', 'i', 'd', 'e' ), parse_leaf }, /* place holder */
+{ 0L, parse_leaf }
+};
+
+static void mov_free_stream_context(MOVStreamContext *sc)
+{
+ if(sc) {
+ if(sc->chunk_offsets)
+ free(sc->chunk_offsets);
+ if(sc->sample_to_chunk)
+ free(sc->sample_to_chunk);
+ free(sc);
+ }
+}
+
+int mov_read_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+ MOVContext *mov;
+ ByteIOContext *pb = &s->pb;
+ UINT32 tag, tag1;
+ int i, j, nb, bps, err;
+ INT64 size;
+ AVStream *st;
+
+ mov = malloc(sizeof(MOVContext));
+ if (!mov)
+ return -1;
+ memset(mov, 0, sizeof(MOVContext));
+ s->priv_data = mov;
+
+ mov->fc = s;
+ if(s->format->name[1] == 'p')
+ mov->mp4 = 1;
+ if(!url_is_streamed(pb)) /* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
+ size = url_filesize(url_fileno(pb));
+ else
+ size = 0x7FFFFFFFFFFFFFFF;
+
+#ifdef DEBUG
+ printf("filesz=%ld\n", size);
+#endif
+
+ /* check MOV header */
+ err = parse_default(mov_default_parse_table, pb, 0L, 0LL, size, mov);
+ if(err<0 || (!mov->found_moov || !mov->found_mdat)) {
+ puts("header not found !!!");
+ exit(1);
+ }
+#ifdef DEBUG
+ printf("on_parse_exit_offset=%ld\n", url_ftell(pb));
+#endif
+ /* some cleanup : make sure we are on the mdat atom */
+ if(!url_is_streamed(pb) && (url_ftell(pb) != mov->mdat_offset))
+ url_fseek(pb, mov->mdat_offset, SEEK_SET);
+
+ mov->next_chunk_offset = mov->mdat_offset; /* initialise reading */
+
+#ifdef DEBUG
+ printf("mdat_reset_offset=%ld\n", url_ftell(pb));
+#endif
+
+#ifdef DEBUG
+ printf("streams= %ld\n", s->nb_streams);
+#endif
+ mov->total_streams = nb = s->nb_streams;
+
+#if 1
+ for(i=0; i<s->nb_streams;) {
+ if(s->streams[i]->codec.codec_type == CODEC_TYPE_MOV_OTHER) {/* not audio, not video, delete */
+ free(s->streams[i]);
+ for(j=i+1; j<s->nb_streams; j++)
+ s->streams[j-1] = s->streams[j];
+ s->nb_streams--;
+ } else
+ i++;
+ }
+ for(i=0; i<s->nb_streams;i++) {
+ MOVStreamContext *sc;
+ sc = (MOVStreamContext *)s->streams[i]->priv_data;
+ sc->ffindex = i;
+ sc->is_ff_stream = 1;
+ }
+#endif
+#ifdef DEBUG
+ printf("real streams= %ld\n", s->nb_streams);
+#endif
+ return 0;
+}
+
+/* Yes, this is ugly... I didn't write the specs of QT :p */
+/* XXX:remove useless commented code sometime */
+int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ MOVContext *mov = s->priv_data;
+ INT64 offset = 0x0FFFFFFFFFFFFFFF;
+ int i, j;
+ int st_id = 0, size;
+ size = 0x0FFFFFFF;
+
+again:
+ for(i=0; i<mov->total_streams; i++) {
+/* printf("%8ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk]); */
+ if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
+ && (mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] < offset)) {
+/* printf("y"); */
+ st_id = i;
+ offset = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk];
+ }
+/* else printf("n"); */
+ }
+ mov->streams[st_id]->next_chunk++;
+ if(offset==0x0FFFFFFFFFFFFFFF)
+ return -1;
+
+ if(mov->next_chunk_offset < offset) /* some meta data */
+ url_fskip(&s->pb, (offset - mov->next_chunk_offset));
+ if(!mov->streams[st_id]->is_ff_stream) {
+ url_fskip(&s->pb, (offset - mov->next_chunk_offset));
+ offset = 0x0FFFFFFFFFFFFFFF;
+/* puts("*"); */
+ goto again;
+ }
+/* printf("\nchunk offset = %ld\n", offset); */
+
+ /* now get the chunk size... */
+
+ for(i=0; i<mov->total_streams; i++) {
+/* printf("%ld ", mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset); */
+ if((mov->streams[i]->next_chunk < mov->streams[i]->chunk_count)
+ && ((mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset) < size)) {
+/* printf("y"); */
+ size = mov->streams[i]->chunk_offsets[mov->streams[i]->next_chunk] - offset;
+ }
+/* else printf("n"); */
+ }
+/* printf("\nchunk size = %ld\n", size); */
+ if(size == 0x0FFFFFFF)
+ size = mov->mdat_size + mov->mdat_offset - offset;
+ if(size < 0)
+ return -1;
+ if(size == 0)
+ return -1;
+ av_new_packet(pkt, size);
+ pkt->stream_index = mov->streams[st_id]->ffindex;
+
+ get_buffer(&s->pb, pkt->data, pkt->size);
+
+#ifdef DEBUG
+/*
+ printf("Packet (%d, %d, %ld) ", pkt->stream_index, st_id, pkt->size);
+ for(i=0; i<8; i++)
+ printf("%02x ", pkt->data[i]);
+ for(i=0; i<8; i++)
+ printf("%c ", (pkt->data[i]) & 0x7F);
+ puts("");
+*/
+#endif
+
+ mov->next_chunk_offset = offset + size;
+
+ return 0;
+}
+
+int mov_read_close(AVFormatContext *s)
+{
+ int i;
+ MOVContext *mov = s->priv_data;
+ for(i=0; i<mov->total_streams; i++)
+ mov_free_stream_context(mov->streams[i]);
+ for(i=0; i<s->nb_streams; i++)
+ free(s->streams[i]);
+ free(mov);
+ return 0;
+}
+
+AVFormat mov_format = {
+ "mov",
+ "QuickTime format",
+ "video/quicktime",
+ "mov",
+ CODEC_ID_MP2,
+ CODEC_ID_MJPEG,
+ NULL,
+ NULL,
+ NULL,
+
+ mov_read_header,
+ mov_read_packet,
+ mov_read_close,
+};
+
+AVFormat mp4_format = {
+ "mp4",
+ "MPEG4 file format",
+ "video/mpeg4",
+ "mp4",
+ CODEC_ID_MP2,
+ CODEC_ID_MJPEG,
+ NULL,
+ NULL,
+ NULL,
+
+ mov_read_header,
+ mov_read_packet,
+ mov_read_close,
+};
projects / ffmpeg / commitdiff